Teustees



(No Mode1.)- W' HOPKINS.

NAILING MACHINE. No. 289,103'. Y Patented Nov. 27, 1883.

N, PETERS. Mmmumagnpher. wumnglm D. C.

@miran Smarts Parana Ormea,

DONF MCKAY, OF NEWPORT, .Rl- IODE ISLAN D QMBRIDGE, MASSACHUSETTS,TRUSTEES.-

NAILING- AND JAMES NV. BROOKS, OFA

MACHINE.

SPECIFICATION forming part of Letters Patent No. 289,103, dated November27, 1883.

Application filed October 12, i883Y (No model.) l

To au wil/0m t indy concern.-

` Be it known that I, VILLIAM l?. HOPKINS, of Lawrence, county of Essex,State of Massachnsetts, have invented an Improvement in 5Nailing-Machines, of which the following description, in connection withthe accompanying drawings, is a specification, like letters on thedrawings representing like parts. l This invention in nailing-machineshas for i its object to prevent the sticking or lodging of naiis in theroadway; and it consists in the combination, with a roadway, of one ormore strikers, to strike those nails which are too far above the top ofthe roadway, or which get i lodged upon or above the roadway, or becomestuck among the other nails, and do not drop and hang into the roadway.

This invention is an improvement on that class of nailing-machinesAhaving a chute or 2o chutes, such as ,represented in United StatesLetters Patent No. 265,227, dated September 136, 1882, to whichreference may be had.

Figure l, in side elevation, represents an ordinary roadway or chute ofa nailing-machine with my improvements added; Fig. 2, a top viewthereof; Fig. 8, a vertical longitudinal central section; and Fig. 4, across-section of the roadway or chute on the dotted line as w, Fig. l. I

The chute or roadway m may be considered to` be the same as the chutedesignated by the saine letter in the patent referred to, and the shafta may bedriven from a shaft such as shown in the saidpatent, and markedC, it having a gear to drive an intermediate gear in engagement with thegear b. Shaft a has its bearings in suitable standards, cc, "hereinshown as erected from the roadway or chute. The shaft a has upon ittwoshouldered cams, 4o d d', herein shown asY double-shouldered, (see Fig.1,) which are rotatedin the direction of the arrows thereon, and whichact against pinscf of strikers ef, made as pointed and beveled bars,placed upon or above the roadway m, so as to slide horizontally justabove the Vtop of the roadway, and also act as pan tial covers for theroadway, the said strikers having, respectively, a connected spring,gg',

the front ends of the strikers as they are attached to 'a suitable post,hor 7L', or to the head ofthe nailing-machine, or to a suitable 5o iixedpart of the said machine, the said springs acting normally to keep thepins ef against the cams d d. The under sides of the strikers arelocated sufficiently far above the top of the roadway to permit thepassage of the heads of the nails to be driven between the said strikersand the roadway, as represented, by the heads of those nails which havepassed under the upper ends of the strik` ers. If any of the nails failto drop down between the side bars or rails of the roadway, asrepresented by nail 2 in Fig. 3, or if a nail becomes lodged across theroadway, as shown by nail 3 in Fig. 2, it will be struck by throwntoward the upper end of the roadway by the cams d d', thus striking thesaid nail a blow and causing it to iiy oif the roadway. If lodged, asthe nail 3, or if held up, as nail 2, it and the nails behind it will bemoved or thrown backward toward the receiving end. of the roadway, andbefore the nail next come'sagainst the striker it will have had a chanceto fall properly into the roadway, for the striker, as the pins ef passthe corners S of the cams, will be vactuated by the springs g or g',connected with them, at a speed faster than the nail can descend in theroadway by gravity, and hence, the path'of the'nail on the roadway beingunobstructed for a short distance, the nail will be free to respond togravity and fall farther into the space between y the sides of theroadway, where the under side of its head will be supported by the topof the roadway, when the nail will be free to pass under the striker,which will reciprocate over its head.

My improvements may be added to any well-kn`own nailing-machine in whichitis possible to feed headed nails' down a roadway, to be takentherefronisingly by a separator and delivered to a driver, said machinebeing provided with suitable gearing to rotate the shaft a.

I claiml. The roadway combined with a recipro- Q v reame eating striker,to strikev against `and rnovel 11p- In testimony whereof I have signedmyname 1o Ward toward the receiving end of the roadway to thisspecification in the presence of two subsueh headed nails as are notproperly lodged l scrbing Witnesses. in the said roadway, substantiallyas described.

5- 2. The roadway and the rotating shaft pro- VILLIAM l?. HOPKINS. videdwith cams, combined with the' striker, located just above the roadwayand moved by W'tnesscs: the saidcams to strike mperfeotly-lodged W. FISKG1LE,- nails, substantially as described. JOHN C. SANBORN.

